Can someone explain the function of this valve? I have a 99 Burban, 4L60, with no reverse. Studying the atsg manual only reveals that there is a valve and booster for reverse and no explanation of their function. There is not a sound when I select reverse. I have been reading the advice here in Hotrodder and it seems like you folks KNOW what you are talking about. I would like to try all the "easy" stuff first befor I tear it apart. Thanks

Can someone explain the function of this valve? I have a 99 Burban, 4L60, with no reverse. Studying the atsg manual only reveals that there is a valve and booster for reverse and no explanation of their function. There is not a sound when I select reverse. I have been reading the advice here in Hotrodder and it seems like you folks KNOW what you are talking about. I would like to try all the "easy" stuff first befor I tear it apart. Thanks

mileage and age on the 1999 4L60E trans? Original trans to the burban?

Does the trans have 2nd gear, and 4th gear?

Not sure what valve you speak of.... the main boost valve is a multi stage unit that boosts reverse pressure

__________________Dont worry how old you are... it is the mileage on your body that adds up.

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